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8
Maintenance
Many factors such as ambient temperature, humidity, dust, vibration,
internal component aging, and wear and tear will give rise to the
occurrence of potential faults. Therefore, it is necessary to conduct
routine maintenance to the inverters.
Note
:
As safety precautions, before carrying out check and maintenance of the
inverter, please ensure that:
The inverter has been switched off;
The charging LED lamp in the inverter is off, which can be seen after
removing the cover.
8.1
Routine Maintenance
The inverter must be operated in the environment specified in the
Section 2.1. Besides, some unexpected accidents may occur during
operation. The user should perform the routine maintenance to ensure a
good operation environment according to the table below. A good way
to prolong the lifetime of the inverter is to record the routine operation
data, find out and clear faults in the early stage.
Table 8-1 Daily Checking Items
Object
Check
Criterion
Items
Methods
Environ
ment
Temperature
、
humidity
Thermometer,
hygrometer
-10°C ~+40°C. Derate if at
40°C ~50°C
Dust, water and
leakage
Observe
No sign of leakage
Vibration
Vibration meter
Less than 5.9m/s2 (0.6g)
Gas Smell No
strange
smell
Inverter
Heat
Touch the casing
Normal air flow
Sound
Listen
No strange sound
Output current
Clamp meter
Within rated range
Output voltage
Voltage meter
Within rated range
Motor
Heat Touch No
overheat
Sound
Listen
No strange sound